Operating Manual

OPERATING MANUAL
3. Click on the field Substrate type. From the list, select those which correspond to the substrate
type to be defined. Depending on the substrate type, different entry fields are displayed.
Paper, cardboard, ...
If you select User-defined for the substrate quality, you can enter the roughness value of the
substrate to be measured in the Roughness entry field.
As well as the hue (remission) of a substrate, the surface quality plays an important role. Under
the microscope, a rough substrate appears as a land¬scape of mountains and valleys. When ink
is applied, the mountains of the substrate shine through and the color is quite different (i.e. less
saturated) from that on a smooth substrate . Ink Formulation seeks to take account of this factor
through a roughness value. In establishing the colorant calibrations, the roughness of the assortment
substrate is calculated on the basis of the data for the first colorant. In defining a new
substrate, it is left to you to enter a plausible value.
Roughness 0% = smooth surface
Roughness 100% = Roughness in the order of magnitude of the film thickness of the ink
For the Calculate button, please note Section 16.4 „Calculating roughness“
Metalized
This substrate type is only available if a Spectro Eye spectrophotometer is connected, since this
substrate type requires such an instrument.
Transparent Film:
If formulation is to take place on transparent film, then the background material for measuring is
very important. It is obvious that, when measuring a transparent film, the color of the background
material will also be included in the measurement. It is therefore essential to ensure that the
same white background is always used. Ideally, a painted white Leneta card or a neutral white
ceramic tile should be used. Paper, for example, is quite unsuitable, because it contains optical
brighteners.
4. Prepare the spectrophotometer for the measurement and click on Measure.
After measuring, the substrate color and the related color values will be displayed
in the lower part of the Substrate Entry window.
If the measuring mode On white and black has been selected, a black-white substrate (contrast
substrate) must be measured. If the black substrate is not measured, Ink Formulation takes the
black of the assortment substrate. This applies to all measurements where a black substrate is
required.
If you want to load a substrate from ColorNet, proceed in the same way as in Section 5.2.3 b
«Loading a target color from ColorNet».
5. Click on OK. You return to the Database: Substrates window. The designation
of the newly defined substrate is displayed on the left of the window.
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16 • Processing and creating substrates